Automobile-lifting device.



P. C GiSON.

AUTOMOBILE LIETING DEVICE.

APPLICATIQN FILED APR. 29,1916.

Patented 00E. 17,1916.

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NTTED STATES PATENT CFFTCE.

PRESTON C. GIBSON, OF GIRARD, ILLINOIS.

AUTOMOBILE-LIFTING DEVICE.

Appli-cation iled April 29, 1916.

To all whom t may concern Be it known that PRESTON C. GIBSON, a citizenof the United States, residing at Girard, in the county of Macoupin andState of Illinois, have invented certain new and useful Improvements inAutomobile-Lifting Devices; and do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

This invention relates to new and useful improvements in liftingdevices, especially designed for raising automobiles so as to relievethe tire of the weight of the machine and thereby extend the life o-fthe tires.

The invention consists of a simple and efficient device of thischaracter having various details of construction, combinations andarrangements of parts which will be hereinafter vfully described, shownin the accompanying drawings and then specifically defined in theappended claims.

My invention is illustrated in the accompanying drawings, in whichFigure 1 is a plan view showing parts in adjusted positions in dottedlines. Fig. 2 is a longitudinal sectional view. 4Fig. 3 is an end view.Fig. l is an enlarged detail View of one of the rack bars and adjacentparts.

Reference now being had to the details of the drawings by letter', Adesignate standards in which the parallel lifting rods B are journaled,and A are supporting plates extending beneath said lifting rods andtransversely thereto. An operating shaft, designated by letter F, ismounted in suitable bearings between and parallel to the lifting rodsand a pair of pinion wheels H and H are mounted near each end of theshaft and rotate therewith. Collars L are also fixed to said shaft andone is'mounted adjacent to each pinion, as shown in Fig. 2 of thedrawings, said collars being of less diameters than the pinions. Rackbars K and K have teeth upon their inner edges near their ends and whichmesh with said pinions, and 'the outer ends of said rack bats areconnectd 'with the tsggle liaise-s P Specification of Letters Patent.

Patented Oct. 17, 1916.

Serial No. 94,405.

and E', and D and E' respectively, the said links D and D beingconnected each with one of the lifting bars and operable in verticalplanes transversely to the lifting rods. Each rack bar is provided witha pair of spaced straps, designated by letter N, at the inner ends ofthe rack bars, said straps extending-from said bars around said shaftand engaging with the sides of the adjacent pinion and with theperiphery of the collar adjacent thereto, to hold the teeth of the barsin mesh with the pinions.

A pinion O is fastened to the operating shaft and is in mesh with apinion O3 mounted upon the stub shaft OL in suitable bearingsupon theframe, and O is a pinion wheel which is fixed to the shaft O* and is inmesh with the pinion wheel O2 upon the shaft OG, which latter has fixedthereto the crank R.

The. operation of my invention will be readily understood and is asfollows: The parts being arranged in the manner shown in the drawingsand the automobile positioned with the axles immediately over the bars Band C when the latter are at their' lowest positions, the automobilewill be bodily raised by the operator turning the cranlr R in o-nedirection, which will cause the gear wheels H and H to rotate, drivingthe bars K and I in opposite directions which will cause the togglelinksto move to positions in alinement with each other, as shown indotted lines in Fig. 3 of the drawings, thus relieving the tire of theweight of the automobile. A reverse movement imparted to the shaft Rwill return the parts to their normal positions.

that I claim to be new is An automobile lifting device comprising a pairof parallel lifting rods', a pair of supporting plates extending beneathsaid lifting rods transversely thereto, toggles' connecting the ends ofsaid lifting rods to said plates, said toggles operable in verticalplanes transversely of said lifting rods, an operating shaft mountedbetween and parallel to said lifting rods, a pair of pinions on each endof said shaft, collars on said shaft, one on each side of each pinionand of less diameter than said pinions, raclr bars meshing at theirinner ends 'with .said pinions and conthezr outer with. the knuckles ofsaid toggles, a pair of spaced straps on Caused to operate said toggiesto raise or the inner end of each rack bar7 said straps lower saidlifting' hars. l@ extending` from said bars around said shaft Intestimony whereof I hereunto aiiX niy and engaging with the sides of thecorresignature in presence of two Witnesses. spending pinion and withthe peripheries of PRESTON C. GIBSON.

the Collars adjacent thereto to hold said bar Vitnesses:

in mesh With said pinion, and means to ro- E. A. GIBSON,

tate said shaft, whereby said rack bars are VIRGINIA MGGHEE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

